Shelf organizer



FIG. 1 is a perspective view of a shelf organizer according to a first embodiment;

FIG. 2 is a front plan view thereof;

FIG. 3 is a left plan view thereof;

FIG. 4 is a right plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear plan view thereof.

The broken lines in the drawings form no part of the claimed design. 

CLAIM The ornamental design for a shelf organizer, as shown and described. 